fix: initialize write channel

v1/client/client.go

@@ -156,6 +156,7 @@ func (b *SafeWebsocketClientBuilder) Build(ctx context.Context) (*SafeWebsocketC
 		reconnectCh: make(chan struct{}, 1),
 		isConnected: false,
 		doneMap:     NewSafeMap[string, chan struct{}](),
+		writeChan:   make(chan Message),
 	}
 
 	if b.authenticateFn != nil {
@@ -404,11 +405,15 @@ func (wsClient *SafeWebsocketClient) reconnectHandler() {
 		case <-wsClient.reconnectCh:
 			log.Println("Reconnect triggered")
 
-			if wsClient.cancelFuncs != nil {
+			wsClient.mu.ReadHandler(func() error {
-				for _, cancel := range wsClient.cancelFuncs {
+				if wsClient.cancelFuncs != nil {
-					cancel()
+					for _, cancel := range wsClient.cancelFuncs {
+						cancel()
+					}
 				}
-			}
+				return nil
+			})
+
 			wsClient.isConnected = false
 			time.Sleep(100 * time.Millisecond)
 
@@ -470,11 +475,14 @@ func (wsClient *SafeWebsocketClient) Write(data []byte) error {
 }
 
 func (wsClient *SafeWebsocketClient) Close() error {
-	if wsClient.cancelFuncs != nil {
+	wsClient.mu.ReadHandler(func() error {
-		for _, cancel := range wsClient.cancelFuncs {
+		if wsClient.cancelFuncs != nil {
-			cancel()
+			for _, cancel := range wsClient.cancelFuncs {
+				cancel()
+			}
 		}
-	}
+		return nil
+	})
 
 	if wsClient.reconnectChans != nil {
 		for _, reconnectChan := range wsClient.reconnectChans {